Q. Am I at a risk of possible pregnancy after missing my contraceptive pills?

Q. Am I at a risk of possible pregnancy after missing my contraceptive pills?

Questions

Hello doctor,

I am currently taking a low dose of combined birth control medication (Femme 20/100) containing 21 hormone tablets and 7 placebo tablets. I was on a higher dose of contraceptive medication (Microgynon 30). Microgynon 30 was switched to lower dose pill because of severe PMS type symptoms. Currently, I am taking Ritalin 60 mg per day in 3 x 20 mg intervals, Abilify 300 mg depot injection monthly, Femme 20/100 contraceptive pill and Clonazepam 2 mg twice a day as needed. I had unprotected sex on day 6 of inactive pill. I forgot to take active pills on day 1, 3 and 4. But, I had 2 pills on day 2 and had unprotected intercourse. I am concerned about the possibility of pregnancy. It is now day 5 and I am regular on my pill. Am I at risk for a possible pregnancy due to missing so many hormonal pills? Also, what should I do from this point onwards? Should I continue as normal or begin a new packet entirely?